EP2009395A3 - Apparatus and method for updating an offset value of magnetic sensor data as well as corresponding machine readable medium - Google Patents

Apparatus and method for updating an offset value of magnetic sensor data as well as corresponding machine readable medium Download PDF

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Publication number
EP2009395A3
EP2009395A3 EP08011344A EP08011344A EP2009395A3 EP 2009395 A3 EP2009395 A3 EP 2009395A3 EP 08011344 A EP08011344 A EP 08011344A EP 08011344 A EP08011344 A EP 08011344A EP 2009395 A3 EP2009395 A3 EP 2009395A3
Authority
EP
European Patent Office
Prior art keywords
magnetic data
data
offset value
magnetic
magnetic sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08011344A
Other languages
German (de)
French (fr)
Other versions
EP2009395A2 (en
EP2009395B1 (en
Inventor
Ibuki Handa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Corp
Original Assignee
Yamaha Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Corp filed Critical Yamaha Corp
Publication of EP2009395A2 publication Critical patent/EP2009395A2/en
Publication of EP2009395A3 publication Critical patent/EP2009395A3/en
Application granted granted Critical
Publication of EP2009395B1 publication Critical patent/EP2009395B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02Magnetic compasses
    • G01C17/28Electromagnetic compasses
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/38Testing, calibrating, or compensating of compasses
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/02Measuring direction or magnitude of magnetic fields or magnetic flux

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Magnetic Variables (AREA)
  • Hall/Mr Elements (AREA)

Abstract

In a magnetic data processing apparatus (10), an input part successively inputs magnetic data from a magnetic sensor (11). A first generation part stores samples of the magnetic data (121) in accordance with a first sampling rule, and generates first offset update data (122) based on the stored samples of the magnetic data when a distribution of the stored samples of the magnetic data indicates a first feature. A second generation part stores samples of the magnetic data (123) in accordance with a second sampling rule, and generates second offset update data (124) based on the stored samples of the magnetic data when a distribution of the stored samples of the magnetic data indicates a second feature. An update part (125) updates an offset value (126) of the magnetic data based on the first offset update data when the same is generated, and updates the offset value of the magnetic data based on the second offset update data when the same is generated.
EP08011344.2A 2007-06-25 2008-06-23 Apparatus and method for updating an offset value of magnetic sensor data as well as corresponding machine readable medium Not-in-force EP2009395B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007166734A JP5012252B2 (en) 2007-06-25 2007-06-25 Magnetic data processing apparatus, method and program

Publications (3)

Publication Number Publication Date
EP2009395A2 EP2009395A2 (en) 2008-12-31
EP2009395A3 true EP2009395A3 (en) 2010-07-07
EP2009395B1 EP2009395B1 (en) 2013-05-29

Family

ID=39789464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08011344.2A Not-in-force EP2009395B1 (en) 2007-06-25 2008-06-23 Apparatus and method for updating an offset value of magnetic sensor data as well as corresponding machine readable medium

Country Status (6)

Country Link
US (1) US7548827B2 (en)
EP (1) EP2009395B1 (en)
JP (1) JP5012252B2 (en)
KR (1) KR101103130B1 (en)
CN (1) CN101334280B (en)
TW (1) TWI359941B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8370097B2 (en) * 2009-06-05 2013-02-05 Apple Inc. Calibration techniques for an electronic compass in portable device
JP5453969B2 (en) * 2009-07-10 2014-03-26 ヤマハ株式会社 Magnetic data processing apparatus, magnetic data processing method, and magnetic data processing program
JP2011203243A (en) * 2010-03-02 2011-10-13 Yamaha Corp Magnetic data processing apparatus, method and program
EP2641139A4 (en) * 2010-11-17 2017-12-20 Hillcrest Laboratories, Inc. Apparatuses and methods for dynamic tracking and compensation of magnetic near field
US8838403B2 (en) * 2011-03-21 2014-09-16 Broadcom Corporation Method and system for a self-calibrated multi-magnetometer platform
JP5927776B2 (en) * 2011-05-20 2016-06-01 株式会社ソニー・インタラクティブエンタテインメント Portable device
US8928309B2 (en) 2012-05-31 2015-01-06 Blackberry Limited System and method for operating a mobile device having a magnetometer using error indicators
EP2669628B1 (en) * 2012-05-31 2017-01-11 BlackBerry Limited System and method for operating a mobile device having a magnetometer
EP2669626A1 (en) * 2012-05-31 2013-12-04 BlackBerry Limited System and method for calibrating a magnetometer on a mobile device
CN108981745A (en) * 2018-09-30 2018-12-11 深圳个人数据管理服务有限公司 A kind of step-recording method, device, equipment and storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005095892A1 (en) * 2004-03-31 2005-10-13 Kyocera Corporation Mobile map display device, map display system, and map display method
US20060031014A1 (en) * 2004-07-23 2006-02-09 Hideki Sato Azimuth processing device, azimuth processing method, azimuth processing program, direction finding device, tilt offset correcting method, azimuth measuring method, compass sensor unit, and portable electronic device
JP2006053081A (en) * 2004-08-12 2006-02-23 Asahi Kasei Electronics Co Ltd Azimuth measuring device and azimuth measuring method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005509746A (en) 2001-11-13 2005-04-14 エーシーエム リサーチ,インコーポレイティド Electropolishing assembly and electropolishing method for electropolishing a conductive layer
KR100446354B1 (en) 2001-12-28 2004-09-01 씨멘스브이디오한라 주식회사 Error correcting method for compass
JP4292571B2 (en) * 2003-03-31 2009-07-08 株式会社デンソー Magnetic sensor adjustment method and magnetic sensor adjustment device
JP4448957B2 (en) * 2004-03-04 2010-04-14 旭化成エレクトロニクス株式会社 Magnetic measuring device and magnetic measuring method
JP4161985B2 (en) 2004-06-11 2008-10-08 ヤマハ株式会社 Portable electronic device with orientation detection function and calibration method thereof
WO2006011276A1 (en) 2004-07-23 2006-02-02 Yamaha Corporation Direction processing device, direction processing method, direction processing program, direction measuring device, and geographic information display
US7437257B2 (en) * 2004-10-07 2008-10-14 Yamaha Corporation Geomagnetic sensor and geomagnetic sensor correction method, temperature sensor and temperature sensor correction method, geomagnetism detection device
KR101095689B1 (en) * 2004-10-07 2011-12-20 야마하 가부시키가이샤 Geomagnetic sensor and geomagnetic sensor correction method
JP4120648B2 (en) * 2005-02-23 2008-07-16 ヤマハ株式会社 Portable terminal, portable terminal control method, program, and recording medium
JP4741888B2 (en) * 2005-06-27 2011-08-10 Necカシオモバイルコミュニケーションズ株式会社 Direction measuring device, direction measuring method and direction measuring program
EP1775550B1 (en) * 2005-10-11 2013-12-11 Yamaha Corporation Magnetic sensor control device
KR100890307B1 (en) * 2006-03-07 2009-03-26 야마하 가부시키가이샤 Magnetic data processing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005095892A1 (en) * 2004-03-31 2005-10-13 Kyocera Corporation Mobile map display device, map display system, and map display method
US20070233381A1 (en) * 2004-03-31 2007-10-04 Kyocera Corporation Mobile Map Display Apparatus, Map Display System and Map Display Method
US20060031014A1 (en) * 2004-07-23 2006-02-09 Hideki Sato Azimuth processing device, azimuth processing method, azimuth processing program, direction finding device, tilt offset correcting method, azimuth measuring method, compass sensor unit, and portable electronic device
JP2006053081A (en) * 2004-08-12 2006-02-23 Asahi Kasei Electronics Co Ltd Azimuth measuring device and azimuth measuring method

Also Published As

Publication number Publication date
TW200921047A (en) 2009-05-16
KR20080114564A (en) 2008-12-31
JP5012252B2 (en) 2012-08-29
US20080316629A1 (en) 2008-12-25
JP2009002915A (en) 2009-01-08
EP2009395A2 (en) 2008-12-31
CN101334280B (en) 2010-06-30
TWI359941B (en) 2012-03-11
CN101334280A (en) 2008-12-31
KR101103130B1 (en) 2012-01-04
US7548827B2 (en) 2009-06-16
EP2009395B1 (en) 2013-05-29

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